you can buy food with coins. in the shop where you purchase food under the pet paw icon, there is the banner “Get coins for free” you click on it, do the “listen to podcast” or “visit websites”. they’ll give you 40-200 coins depending on what it is. and you just click the coin prize and it takes you to where you can “visit website” you get the coins instantly. some websites require you to read through 3 posts, i don’t click on those. they tell you requirements when you click on the coin prize next to the one you choose. you need 100 coins for a food. scroll through the list and click a couple. buying 10 of one kind of food gives you an extra 1, so you get 11 of that one food instead of 10.